AURIFERE
PORTAIL DOCUMENTAIRE DE L'INSTITUT SENEGALAIS DE RECHERCHES AGRICOLES
Elaboré par
L’Unité d’Information et de Valorisation des Résultats de la Recherche (UNIVAL)
'Un Accès Unique aux Ressources d’Information
et aux Fonds documentaires pour une Recherche d’Excellence
'
A partir de cette page vous pouvez :
Détail de l'auteur
Documents disponibles écrits par cet auteur
Affiner la recherche
PLoS ONE, Vol.7, n° 11. Construction of chromosome segment substitution lines in peanut (Arachis hypogaea L.) using a wild synthetic and QTL mapping for plan morphology [texte imprimé] / Daniel Fonceka, Auteur ; Tossim Hodo-Abalo, Auteur ; R Rivallan, Auteur ; H Vignes, Auteur ; Elodie Lacut, Auteur ; Fabien De Bellis, Auteur ; Issa Faye, Auteur ; Ousmane Ndoye, Auteur . - [S.l.] : University , United States of America, 2012 . - 11 p. Langues : Anglais ( eng) Catégories : | SCIENCES ET PRODUCTIONS VEGETALES
| Mots-clés : | cartographie synthétique morphologie du plan arachide chromosomique | Index. décimale : | F311-Base génétique, gènes, chromosomes, génomes | Résumé : | Chromosome segment substitution lines (CSSLs)are powerful QTL mapping populations that have been used to elucidate the molecular basis of interesting traits of wild species. Cultivated peanut is an allotetraploid with limited genetic diversity. Capturing the genetic diversity from pean ut wild relatives is an important objective in many peanut breeding programs. ln this study, we used a marker-assisted backcrossing strategy to produce a population of 122 CSSLsfrom the cross between the wild synthetic allotetraploid (A. ipaënsis xA. duranensis)4X and the cultivated Fleur11 variety. The 122 CSSLs offered a broad coverage of the peanut genome, with target wild chromosome segments averaging 39.2 cM in length. As a demonstration of.the utility of thèse lines, four traits were evaluated in a subset of 80 CSSLs.A total of 28 lines showed significant différences from Fleuri" The linextrait significant associations were assigned to 42 QTLs: 14 for plant growth habit, 15 for height of the main ste~ 12 for plant spread and one for flower color. Among the 42 QTLs, 37 were assigned to genomic regions and three QTL positions were considered putative. One important finding arising from this QTL analysis is that peanut growth habit is a complex trait that is governed by several QTLs with different effects. The CSSL population developed in this study has proved efficient for deciphering the molecular basis of trait variations and will be useful to the peanut scientific community for future Q~:mapping studies. |
|
Exemplaires
Disponibilité |
---|
CN1502978 | P310-FON | Article scientifique | UNIVAL | Rayons | Exclu du prêt |
Documents numériques
Cliquer pour ouvrirURL | | |